1,721,038 research outputs found
Il problema della regolazione dei partiti politici. Itinerari della scuola palermitana di diritto pubblico
No full textthe problem of party regulation according to the Palermo school of public law. between past and future. In particular, the analysis is on three authors: Pietro Virga, Guido Corso and Marco Mazzamuto
La costituzione materiale e il compito dei giuspubblicisti oggi. Giuseppe Guarino e il "nuovo" diritto pubblico
Full text linkWhat makes Guarino’s figure so fascinating is the multiplicity of his interests, combined with the long activity of his life as a jurist, which ensure that there is not, just one Guarino, but as many as there are seasons and events that he has found to investigate with the strength of reason, clarity, objectivity, combined with a rigorous method of investigation that dissolves into an inexhaustible constructive fantasy. His thought is to separate time between a before and an after, producing a clear discontinuity with the past and creating new perspectives for the future.This essay wants to investigate two central points in Guarino's reflection: the costituzione materiale and the task of jurists. His speech starts, in a certain sense, when everything is now to be built: that is, in the aftermath of the gigantic tragedy of the Second World War. The "postwar" has confronted scholars of public law with the reality of a structure which, however, is always the expression of certain ideas and certain interests, as they are asserted by certain political forces. Guarino starts from this point, from the awareness that every community gives life to an order that is expressed in a system of rules and at the same time in a system of relationships, but that we must not stop at formal data alone. In Guarino's thought, the way that solidly roots the figure of the jurist in human society and history lies in the ability to stretch out on reality and consider oneself a participant in the construction of the legal system. It is up to subsequent generations of jurists to collect not only a cultural legacy of extraordinary richness, but also, and I would say more than anything else, the example of a jurist informed by the sense of trust in institutions and in ma
Caratterizzazione di polifenoli ed attività antiossidante (ORAC) in ciliegie di cultivar pugliesi.
No full textSweet cherry (Prunus avium L.) 'Giorgia', adventitious regeneration from leaves of microplants
No full textWith the aim of exploiting the regenerative capability
of sweet cherry (Prunus avium L.) ‘Giorgia’, experiments
were carried out using suitable plant tissue cultures
established in vitro. Relatively high percentages
of adventitious shoot regeneration were consistently
obtained from in vitro leaves, wounded by three cuts
transversely to the midrib, excised from 3-week-old
proliferating shoots. The regeneration capacity was influenced
by the mineral salts and the plant growth regulator
(PGR) composition of the regeneration medium:
Woody Plant Medium (WPM) gave the best results
and 22.7 μM of 1-Phenyl-3-(1,2,3-thiazol-5-yl)urea
(thidiazuron, TDZ) induced most adventitious regeneration.
The pre-culture of the donor shoots on MS
medium with phloroglucinol (PG)-added improved
the regeneration rate. Histological studies demonstrated
the origin of the adventitious shoots from callus
formed by epidermal and sub-epidermal cells as
well as by the inner cells of the vascular bundles
Anthocyanins from Eugenia myrtifolia Sims.
Full text linkEugenia myrtifolia Sims fruits have been characterized for their anthocyanin content and quality. Following the common procedures and
validated methods for separation, identification and quantification of anthocyanins, we found the presence of malvidin 3,5-O-diglucoside as a
unique anthocyanin (32,59 mg/100 g fresh weight of the fruit). An in vitro shoot culture of E. myrtifolia was established in order to explore the
possibility to produce pigments in vitro. The presence of the only malvidin 3,5-O-diglucoside could be a useful feature in order to manipulate
biotechnologically the anthocyanin biosynthetic pathway in the in vitro material (callus and suspension cultures)
Characterization of two Arabidopsis thaliana glutathione S-transferases.
No full textGlutathioneS-transferase (GST) are multifunctional proteins encoded by a large gene family, divided on the basis of sequence identity into phi, tau, theta, zeta and lambda classes. The phi and tau classes are present only in plants, GST appear to be ubiquitous in plants and are involved in herbicide detoxification and stress response, but little is known about the precise role of GSTs in normal plant physiology and during biotic and abiotic stress response. Two cDNAs representing the two plant classes tau and phi, AtGSTF9 and AtGSTU26, were represented in vitro and corresponding proteins were analyzed. Both GSTs were able to catalyze a glutathione conjugation to 1-chloro-2,4-dinitrobenzene (CDNB), but they were inactive as transferases towards p-nitrobenzylchloride (pNBC). AtGSTF9 showed activity towards benzyl isothiocyanate (BITC) and an activity as glutathione peroxidase with cumene hydroperoxide (CumHPO). AtGSTU26 was not active as glutathione peroxidase and towards BITC. RT-PCR analysis was used to evaluate the expression of the two genes in response to treatment with herbicides and safeners, chemicals, low and high temperature. Our results reveal that AtGSTU26 is induced by the chloroacetanilide herbicides alachlor and metolachlor and the safener benoxacor, and after exposure to low temperatures. In contrast, AtGSTF9 seems not to be influenced by the treatments employed
Arabidopsis (HXK1 and HXK2) and yeast (HXK2) hexokinases overexpressed in transgenic lines are characterized by different catalytic properties
No full text
Arabidopsis (HXK1 and HXK2) and yeast (HXK2) hexokinases overexpressed in transgenic lines are characterized by different catalytic properties
No full text- …
